Doctors say Johan Friso was in cardiac arrest for 50 minutes
                                
                                
                                    (Newser) -
                                    Sad news for the Netherlands: Dutch Prince Johan Friso, who got  snowed under by an avalanche  while skiing in the Austrian Alps last Friday, may never wake from his coma. At a press conference today, his doctor explained that Queen Beatrix's middle son suffered severe brain damage after being...